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engines/saga2/gtextbox.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * aint32 with this program; if not, write to the Free Software
+ *
+ *
+ * Based on the original sources
+ *   Faery Tale II -- The Halls of the Dead
+ *   (c) 1993-1996 The Wyrmkeep Entertainment Co.
+ */
+
+#ifndef SAGA2_GTEXTBOX_H
+#define SAGA2_GTEXTBOX_H
+
+namespace Saga2 {
+
+enum textBoxFlags {
+	//  First 4 flags are the TextPositions flags for label placement
+	kTextBoxAlignRight   = (1 << 4),
+	kTextBoxAlignCenter  = (1 << 5),
+	kTextBoxNoFilter     = (1 << 6),     // let non-edit keys come through
+	kTextBoxStayActive   = (1 << 7),
+	kTextBoxNoBevel      = (1 << 8)
+};
+
+// edit box defines
+const   int kEditLen         = 35;
+const   int kNumEditLines    = 50;
+const   int kTextPen         = 12;
+const   int kTextDisable     = 14;
+const   int kTextHilite      = 11;
+const   int kTextBackground  = 87;
+const   int kTextBackHilite  = 211;
+const   int kCursorColor     = 174;
+const   int kTextHeight      = 10;
+
+const int32 kBlinkTime   = 72 / 6;
+const int16 kBlinkColor0 = 137;
+const int16 kBlinkColor1 = 232;
+const int16 kBlinkWide   = 1;
+
+extern StaticRect editBaseRect;
+
+
+/* ===================================================================== *
+   gTextBox class: Single line text-editing control
+ * ===================================================================== */
+
+// displays a text box and allows single line editing
+class gTextBox : public gControl {
+private:
+
+	char    **_fieldStrings;
+	char    *_undoBuffer;                // undo buffer for editing
+	bool    _internalBuffer;
+
+	// editor values
+	uint16  _maxLen,
+	        _currentLen[kNumEditLines],
+	        _exists[kNumEditLines],
+	        _undoLen,
+	        _cursorPos,
+	        _anchorPos,
+	        _scrollPixels;
+	uint16  _flags;
+
+	// text display values
+	int8    _fontOffset;
+	int8    _linesPerPage;
+	int8    _index;
+	int8    _endLine;
+	int8    _oldMark;
+
+	// font settings
+	gFont   *_textFont;
+	gFont   *_oldFont;
+	int8    _fontHeight;
+	int8    _fontColorFore;
+	int8    _fontColorBack;
+	int8    _fontColorHilite;
+	byte    _fontColorBackHilite;
+	byte    _cursorColor;
+	int32   _blinkStart;
+	int16   _blinkX;
+	int8    _blinkState;
+
+
+	// editing switch values
+	bool    _displayOnly;
+	bool    _editing;
+	Rect16  _editRect;
+	bool    _hilit;
+	bool    _noUndo;
+	bool    _fullRedraw;
+	bool    _inDrag;
+	bool    _isActiveCtl;
+
+	AppFunc         *_onEnter;
+	AppFunc         *_onEscape;
+
+	gPanelList  *_parent;            // window
+
+protected:
+
+	void prepareEdit(int which);
+	void revertEdit();
+	void commitEdit();
+	bool changed();
+
+	void scroll(int8);
+
+	void enSelect(int which);
+	void deSelect(bool commit = false);
+	void reSelect(int which);
+
+	bool activate(gEventType why);       // activate the control
+	void deactivate();
+
+	bool pointerHit(gPanelMessage &msg);
+	void pointerDrag(gPanelMessage &msg);
+	void pointerRelease(gPanelMessage &msg);
+	bool keyStroke(gPanelMessage &msg);
+
+	void selectionMove(int howMany = 1);
+
+
+	bool insertText(char *text, int length);
+	void setText(char *text);
+	void setEditExtent(const Rect16 &r);
+	void selectionUp(int howMany = 1) {
+		selectionMove(-howMany);
+	}
+	void selectionDown(int howMany = 1) {
+		selectionMove(howMany);
+	}
+	void drawAll(gPort &, const Point16 &, const Rect16 &);
+
+	// Returns a pointer to the currently selected text of length
+	char *selectedText(int &length);
+	void handleTimerTick(int32 tick);
+
+	void editRectFill(gPort &fillPort, gPen *pen);
+	void drawContents();
+
+public:
+
+	gTextBox(gPanelList   &list,            // window
+	         const Rect16 &box,          // rectangle
+	         gFont       *font,          // font specified for this box
+	         int8        height,         // height of the font
+	         int8        FGColor,        // foreground color of font
+	         int8        BGColor,        // background color of font
+	         int8        HLColor,        // hilite color of font
+	         byte        BGHLColor,      // back ground hilite color
+	         byte        CRColor,        // cusor color
+	         const char  *title,         // title bar
+	         const char  *buffer,        // buffer to edit
+	         char        **stringBufs,
+	         uint16      length,         // length of buffer
+	         uint16      flg,            // various flags
+	         uint16      ident,          // control ID
+	         bool        noEditing,      // display text or allow edit
+	         AppFunc     *cmd = NULL,    // application command func
+	         AppFunc     *cmdEnter = NULL, // Appfunc for enter key
+	         AppFunc     *cmdEscape = NULL); // Appfunc for escape key
+	~gTextBox();
+
+
+	void drawClipped(gPort &, const Point16 &, const Rect16 &) {
+		drawClipped();
+	}
+	void drawClipped();
+	void draw() {
+		drawClipped();    // redraw the panel.
+	}
+
+	bool tabSelect();
+
+	virtual void timerTick(gPanelMessage &msg);
+
+	void scrollUp();
+	void scrollDown();
+
+	char *getLine(int8);
+	int8 getIndex() {
+		return _index;
+	}
+
+	void killChanges() {
+		revertEdit();
+	}
+	void keepChanges() {
+		commitEdit();
+	}
+
+	void choose(int which = 0) {
+		reSelect(which);
+		if (!isActive()) makeActive();
+	}
+
+};
+
+} // end of namespace Saga2
+
+#endif